A Study on the Cathode Protection Potential Against Pitting Corrosion

Authors

Chun-chun XU, Dept. of Appl. Chem., Beijing Univ. of Chem. Techn., Beijing 100029
You-ping LIU, Dept. of Appl. Chem., Beijing Univ. of Chem. Techn., Beijing 100029
Xiao-bo ZHANG, Dept. of Appl. Chem., Beijing Univ. of Chem. Techn., Beijing 100029
Xu-hui ZHAO, Dept. of Appl. Chem., Beijing Univ. of Chem. Techn., Beijing 100029

Corresponding Author

Xiao-bo ZHANG

Abstract

The methods have been developed to determine the protection potential against pitting corrosion. They are based on the theory that the pitting protection potential (E_p) is actually the transition potential of the direction of current between the occluded cell and the external surface (E_T). E_T lasts from -220 mV to -440 mV (SCE), the lowest of which can be considered as cathode protection potential. The E_p values determined with cyclic potentiodynamic polarization method is included in the E_T with above methods.

Keywords

Partial corrosion, Transition potential, Occluded cell, Protection potential

DOI Link

https://doi.org/10.61558/2993-074X.3168

Publication Date

1999-05-28

Online Available Date

1999-05-28

Revised Date

1999-05-20

Received Date

1998-12-14

Recommended Citation

Chun-chun XU, You-ping LIU, Xiao-bo ZHANG, Xu-hui ZHAO. A Study on the Cathode Protection Potential Against Pitting Corrosion[J]. Journal of Electrochemistry, 1999 , 5(2): 152-156.
DOI: 10.61558/2993-074X.3168
Available at: https://jelectrochem.xmu.edu.cn/journal/vol5/iss2/5